Freeman Tweaked Bluebird E-flat Whistle - NEW 2013 Model Similar in sound to a Freeman Blackbird (pure and sweet), yet easier for a beginner to play, since it does not require the careful breath-control needed to play a Blackbird. Elimates the uneven register issues that show up in mass-produced whistles. High notes stay sweet and pure rather than going shrill. Jerry Freeman expertly tweaks mass-produced whistles to improve quality and produce a clean playing, beautiful sounding, nicely in-tune instrument that's well balanced throughout both registers. The newer model features an attractive brass ring around the base of the mouthpiece to improve durability and prevent cracking when the whistle is tuned.